Cylinder lock with stop means



Sept. 3, 1957 D. l.. BIBLIN CYLINDER LOCK WITH STOP MEANS Filed May27,1951.5

. INVENTOR. Da/WEL L. B/BL l/v. BY

HTToP/VEY.

CYLINDER LQCK WITH STOP MEANS Daniel L. Biblin, Bristol, Conn., assignorto The Eagle Lock Company, Terryville, Conn., a corporation ofConnecticut Application May 27, 1953, Serial No. 357,717

8 Claims. (Cl. 70-362) This invention relates to a cylinder lock withstop means and more particularly to a lock of the cylinder type whichgenerally includes a cylinder that contains a barrel, or key plug, thatis rotatably mounted therein.

An object of the present invention is to produce a lock of the cylindertype having stop means for limiting the rotation of the barrel indifferent positions relatively to the cylinder.

A further object of this invention is the provision of such stop meanswhich may be located within the lock to selectively stop the rotation ofthe barrel relatively to the cylinder in any predetermined position.

f nited States Patent A still further object of this invention is theprovision Y of such stop means which may be used without variations inconstruction to limit t-he rotation of the plug between any two of apredetermined number of positions.

Further objects and advantages of this invention will be more clearlyunderstood from the following description and from the accompanyingdrawings in which:

Fig. 1 is a side view of a lock embodying the present invention.

Fig. 2 is a front view of the cylinder used in said lock.

Fig. 3 is a sectional side view of a portion of said cylinder on line3-3 of Fig. 2.

Fig. 4 is a side view of said lock, partly in central vertical section.

Fig. 5 is a sectional end view on line 5 5 of Fig. 4, showing the stopmeans positioned for permitting right hand rotati-on of the barrelthrough a distance of ninety degrees.

Fig. 6 is a similar view showing the stop means positioned forpermitting left hand rotation of the barrel through a distance of ninetydegrees.

Fig. 7 is a similar view showing the stop means adapted for permittingright hand rotation of the barrel through a distance of one hundred andeighty degrees.

Fig. 8 is a similar view showing the stop means adapted to permit lefthand rotation of the barrel through a distance of one hundred and eightydegrees.

Fig. 9 is a sectional end view on line 9 9 of Fig. 10 showing a modifiedform of my invention.

Fig. l is a sectional side view online 10-10 of Fig. 9.

Fig. l1 is a perspective view of a stop member used in the presentinvention.

In the embodiment illustrated in Figs. l to 8 of the drawings, myimproved lock includes a cylinder having an axial bore 6, with opposedgrooves 7-7 running longitudinally in the inner wall of the said boreand at opposite sides thereof. The said cylinder is provided at thefront end thereof with an annular recess 8 which surrounds the bore andhas an enlarged concentric portion 9 that is adapted to receive the head10 of a barrel, or key plug, 11 which is rotatably contained within thesaid bore. The barrel has an annular shoulder 12, adjacent to the head10, which is rotatable in the recess 8 and has a stop lug 13 thatextends radially therefrom into the said recess 8.

In accordance with the present invention, there is provided, preferablyin the bottom wall of the annular recess 8, a pair of holes 14-15 whichare symmetrically located with respect to the vertical axis of thecylinder. A stop member 16 is provided within the recess 8 and is heldin position by one of said holes for limiting the rotation of the barrelrelatively to the cylinder between any selected two of a number ofdifferent positions; rthe said stop member 16 being preferablyconstructed of wire in the for-m Aof a ringv having a portion thereofcut away and an end portion bent perpendicularly to the plane of thering to provide a finger 17 which extends into a selected one of theholes 14 and 15 to thereby secure the stop member i'n stationaryposition relatively to the cylinder for the purpose to be hereinafterdescribed. v t

It will be understood that the barrel 11 is provided with a series ofconventional tumblers 18 which are normally projected from the barrelinto one .of the grooves 7-7 t-o thereby lock the barrel againstrotation relatively to the cylinder; the said tumblers being keyoperated for retraction into the barrel to permit rotation of the barrelrelatively to the cylinder.

The barrel 11 is preferably provided with an axially disposed squareprojection 19 to receive a locking bolt 20, having a square opening 19atherethrough, in different positions relatively to the barrel. The saidbolt may be detachably secured on the projection 19 by suitable means,such as a retaining ring 21 which is secured to a cylindrical extension21--a on the projection 19.

In the construction illustrated in Figs. l to 8, the stop member 16 maybe secured to the cylinder in different positions so as to permit eitherleft hand or right hand rotation of the barrel relatively to thecylinder, for a distance of ninety degrees, by simply inserting thefinger 17 into either of the holes 14 or 15.

When the finger 17 is inserted into the hole 14, as shown in Fig. 5, thestop lug 13 may move between the ends of the stop member, andl righthand rotation of the barrel for a distance of ninety degrees is therebypermitted. When it is desired to permit left hand rotation of the barrelfor a distance of ninety degrees, the said finger is inserted into thehole 15, as shown in Fig. 6.

When it is desired to permit right hand rotation ofthe barrel for adistance of one hundred and eighty degrees, the member 16 may be cutoff, as shown in Fig. 7, and the finger 17 inserted in the hole 14. Lefthand rotation of the barrel for a distance of one hundred and eightydegrees may then be obtained by simply turning the cylinder 5 upsidedown so that the stop member would be located at the top of saidcylinder, -as shown in Fig. 8, instead of at the bottom.

It will be understood from the above description that the stop means ofthis invention may be located in a number of different positions bysimply inserting the finger i7 of the stop member 16 into the properhole for the desired results and without requiring any special tools oroperation. Therefore, a specified lock having the required direction anddistance of rotation for the barrel may be provided by simply assemblingthe parts of the lock to obtain the desired results and a substantialeconomy in the production of the lock is thereby attained. Also,different distances of rotation may be obtained for the barrel by merelyeither cutting ofi a portion of the stop member 16 or providing stopmembers, such as lr6-tz, having different spacings between their freeend portions so that different distances of rotation may be provided forthe barrel.

In the modified form shown in Figs. 9 and l0, the cylinder may beprovided with a series of holes in different predetermined positionsaround the bottom of the recess 8-a and a pair of pins 23 and 24 may beinserted into any two of said holes to provide the desired degree anddistance of rotation for the barrel.

It will be also understood from the above that the bolt projection 19by'sirnplyplacing it upon the said projection in the requiredposition'and then securing it in place by means of the retaining ring21. Y

I claim: 1

l. A lock comprising a lcylinderhaving a bore therein and an annularrecess adjacent the end` of said bore, a barrel rotatable in said boreand having ahead portion fitting the said recess, the saidrecesshavingaplurality of holes in the bott-om wall'thereof, a ring shapedstop member having a finger inserted into one of said holes forpositioning the member relatively to the cylinder and free end portionsspaced from each other, a stop lug extending radially from the barrelbelow the head and projecting between the said free end portions of thestop member for limitingthe rotation of the barrel relatively to thecylinder.

2. A lock comprising a cylinder having an axial bore extendingtherethrough, a barrel rotatably contained within said bore, the saidsylinder having a first annular recess adjacent the end of the bore andcommunicating therewith and a second annular recess communicating withthe first annular recess, the said barrel having an annular shoulder inregister with said first recess and a head portion fitting within thesecond recess, the first recess having a plurality of holes in a wal-lthereof, a stop member contained within the first recess having aportion inserted into one of said holes and spaced end portions, and aprojection on said shoulder movable between and engageable with said endportions for limiting the rotation of the barrel relatively' to thecylinder.

3. A lock comprising a cylinder member having an axial bore and anannular'recess therein communicating with'said bore, a barrelmembercontained within saidbore and rotatable therein relatively to thecylinder, an arcuate wire element contained within said recess,cooperating means on said wire element and one of said members forsecuring said element thereto, and a projection on the other ofsaidmembers extending into said recess between the free ends of said wireelement-and cooperating therewith to limit rotation of said barrel to `apre-determined number of degrees.

4. A lock comprising a cylinder member having an axial bore and anannular recess therein communicating with said bore, a barrel membercontained within said bore and rotatable therein relatively to saidcylinder; one of said members having a hole therein communicating withsaid recess, an arcuate wire element contained within said recess andhaving a projecting finger inserted into said hole, and a projection onthe other of saidmembers ex- 5() tending into said recess'between thefree ends of said wire element and cooperating therewith to limitrotation of said barrel member to a pre-determined number of degrees.

5. A lock comprising a cylinder having an axial bore and anannularrecess therein communicating with said bore; said annular recess havinga hole in a wall thereof, a barrel contained within said bore rotatabletherein relatively to said cylinder, an arcuate wire stop membercontained within said recess and having a projecting finger insertedinto the said hole for positioning the stop member relatively to thecylinder, and a projection on said barrel extending into Said recess`and engageable with the free ends of said stop member for limiting therotation of the barrel relatively to the cylinder.

6. A lock as set forth in claim 5 wherein a plurality of holes areprovided in the wall of the recess for locating the stop member indifferent positions relatively to the cylinder.

7. A lock including a cylinder having an axial bore and an annularrecess therein communicating with said bore; said recess Yhaving a holein a wall thereof, a barrel contained within said bore and rotatabletherein relatively to the cylinder, an arcuate wire stop membercontained within said recess and having a finger projecting from one endthereof and inserted in the hole in the wall of said recess for securingthe stop member in position relatively to the cylinder, and a stop lngprojecting from said barrel into said recess and engageable With theends of said stop member for limiting the rotation of the barrelrelatively to the cylinder.

8. A lock comprising a cylinder member having an axial bore and anannular recess adjacent an end of said bore, a barrel member rotatablein said bore and having a head portion fitting the said recess andspaced from the bottom thereof; one of said members having a holetherein communicating `with said recess, an arcuate wire stop membercontained within said recess and having a ringer thereon extending intosaid hole; theother of said members having a stop lug extending intosaid recess between the free ends of said stop member and cooperatingtherewith to limit the rotation of the barrel relatively to thecylinder.

References Cited in the iile of this patent UNITED STATES PATENTS913,942 Bodge Mar. 2, 1909 1,598,551 Brauning Aug. 3l,- 1926 1,674,513Jacobi June 19, 1928 2,139,842 Miller Dec. 13, 1938 2,580,882 Blohm -;gJan. l, 1952 FOREIGN PATENTS 408,572 Germany v Ian. 20, 1925

